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Unformatted text preview: Click to edit Master subtitle style Anthropogenic Climate Change • Greenhouse gases • Historic evidence • How we make future projections • Uncertainty/Probability • Sea-level changes • Climategate Are the greenhouse gas increases the result of only human activity? Can’t the oceans and vegetation take up increasing amounts of CO2? Click to edit Master subtitle style Isn’t overpopulation the cause of increasing greenhouse gases? p o p u l a t i o n S t a n d a r d o f l i v i n g E n e r g y e f f i c i e n c y S o u r c e o f e n e r g y e m i s s i o n s Do we know much of CO2 and other major greenhouse gas emissions get released into our atmosphere globally on a daily basis from humans activity? Radiative Forcing Is the earth really getting warmer? I’ve heard many argue that this increase in the Earth’s temperature is just part of a long term temperature cycle that goes back thousands of years. Others disagree, can you explain this? Source: Mann et al. 2000. Earth interactions Human-caused or natural? Hasn’t the world’s climate been much hotter and much colder in the past? If so, why is everyone so concerned about global warming if this is a normal natural climate...
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